גו'ק סולרי הולך

Features:
1. This Solar Grasshopper,when exposed to sunlight,can start its mini-engine by shaking itself,so no batteries are needed
2. Powered by sunlight,this product will shake ifself,seemingly forward or backward,spinning around as if looking for food
3. Both specially designed and ecofriendly,this product is also an excellent teaching aid to provide students 
with some basic knowledge about solar energy